Katsumas are a type of adoptable Monsters in Moshi Monsters. They have natural health, so it's fine to leave them alone for 2-8 days, although they need to have food at hand and plenty of games to raise their health and happiness.


Main article: Moshipedia

Mess with a Katsuma and you'll unleash a flurry of claws, jaws and lightning-fast moves! When Katsumas aren't bustin' choptastic moves, they're busy working on their super-smooth style!


Katsumas are together with Poppets the top popular adopted species in Moshi Monsters and are thus much more prominently promoted in merchandise.

They are based on felines in behaviorism and bodily abilities, as they produce sounds similar to meowing and can emerge claws. They bear resemblance to rabbits in form, although this was preserved an insult in the fiction that mentioned it.

Katsumas are fast and talented in martial arts, specifically Karate. They are overall often associated with Japanese culture.

Katsumas are bold, fierce and feisty and have a very boastful nature. In fiction, Katsumas have been a bothering factor in the group dynamic of the main monsters, as shown with Axl Van Slap leaving The Fizzbangs due to being too full of himself and Katsuma in The Great Moshling Egg. In said movie, Dr. Strangeglove tried to make use of Katsuma's nature, referring to him as "that fame-hungry furball Katsuma", as part of his scheme. He did not plan on the rest of the gang tagging along.

They don't like to be over-fed, but most Katsumas like Katsuma Crunch, Green and Roarberry Cheesecake. They hate Sludge Fudge.



  • Heyheyheyhey! You're here, how do I look? You look great, how do I look?


  • Boy, I look super sharp today! Rrrrr!
  • Choptastic!
  • 'mon let's do something, anything!
  • Do you want to go shopping? You never know what we might find.
  • Games! Now games! Katsumas are best when they're playing, we're very competitive.
  • Hey, let's play!
  • Hmmm, I could do with a little nibble.
  • How 'bout some grub?</span>
  • I'll tell you, finding hats that work with these ears is a real problem...
  • I'm not an expert, but I hear that shopping makes you live longer. Let's go!</span>
  • Is there a mirror around here?
  • Let's do a little shopping? Gotta keep up with the monster trends!
  • Let's find something fun to do!
  • Let's go shopping, I wan't some new stuff!
  • Maybe I should get a make-over? Hmmm... no, on second thoughts, I look great!
  • Maybe we should re-do this room?
  • My teeth itch!
  • Now we play a game, yes? I wanna play a game now! NOW!
  • Pfff, I'm a little tired. Too many games of grolleyball!</span>
  • Unless I've got the latest stuff from the shops, how can I be a cool Katsuma?
  • We can make this place look better, can't we? More stuff, let's shop!


  • Are you trying to make friends with me by doing that?
  • Can we play now?
  • Did I say you could touch me?
  • Do I really have to come? 
  • Don't call me Satsuma! Boy, do I hate that!
  • Fine, I'll come. [SIGH]
  • Hey! Remember me? I'm still here.
  • [YAWN] I'm mega bored.
  • I'm feelin' a little blue. Maybe it's the weather.
  • I'm staying put. What do ya think of that?
  • I'm tired of the way this room looks. Let's change it!
  • I can't stand it! You've got to redecorate! I'm sorry, but you've got to!
  • I think you'll be in serious trouble unless we start to have fun soon!
  • Mmmm... yeah, whatever.
  • Mmrgh, you never pet me...
  • Mmrrgh, you're going to have to try harder than that!
  • Not coming. Don't want to.
  • Now you're really bugging me.
  • Okay, okay! I'm coming! 
  • Ooh, a bite to eat would be good.
  • Stop it. Stop it. Okay, maybe if you keep going.
  • Stop it. Stop it. Stop it.
  • That's not helping. Really, really, not helping.
  • That seems a bit pointless really. It's nice though. 
  • The look this season is... well, put it this way, it's not this.
  • The only way to calm my mood right now is to go shopping.
  • What's a monster gotta do to get some chow?
  • Yeah, yeah, I'll come if I have to.
  • You can try all you like, this monster is staying put!
  • You'd better talk to the hand - I'm not moving!
  • Hey! Who said I looked like a squirrel? Own up, I'll teach you a lesson you'll never forget!

After Eating

  • De-li-cious. Urp! [BURP] 
  • More more more, my tummy is rumbling and grumbling.
  • Mm not bad, but gimme something a bit more nutritious!
  • Mmmm! Monsterlicious!
  • Num num num, okay now something healthy.

Notable Members


Main article: Katsumas/Gallery


  • Katsumas are the most adopted monster followed by PoppetsDiavlosLuvlisFuris, and Zommers.
  • The name Katsuma is a cross between a cat and a satsuma.
  • Katsumas language is called "Katsumanese".
  • Katsumas generally enjoy dancing with Katsuma (character) as an exception
  • Katsumas were the only monsters who could gain weight. This was however removed from the game.
  • Katsuma is one of the two monsters to have a Mosh 'n' Chat toy, along with Poppet.
  • Frazzled, a Staff Member, is a Katsuma.
  • In April 2013, Katsuma got a new look along with the other Monsters.
  • A Katsuma starred in a Frubes advert along with a Diavlo and a Zommer.
  • In Katsuma Unleashed, there's a character who looks like Katsuma but with a monocle, top hat, tie, and tuxedo. They go by the name Mr. Katsuma and are a simple unlockable pallet swap of Katsuma. In the game's files, the character is called "Gentleman Katsuma".
Katsuma Unleashed - Gentleman Katsuma Gameplay

Katsuma Unleashed - Gentleman Katsuma Gameplay

Footage of Mr. Katsuma

  • Katsuma lost a lot of animations alongside an in-game update for unknown reasons. They can be viewed here.